Altronix OLS75 Off-Line Power Supply Charger Installation Guide
- June 4, 2024
- Altronix
Table of Contents
Altronix OLS75 Off-Line Power Supply Charger
Overview
Altronix OLS75 power supply/charger converts 115VAC, 60Hz or 230VAC, 50Hz input into a 12VDC or 24VDC with 2.5A of continuous supply current (see specifications). This general purpose power supply has a wide range of application for access control and security system accessories that require additional power.
Specifications
Agency Listings:
CE European Conformity.
Input:
Universal input 115VAC, 60Hz, 0.95A or 230VAC, 50Hz, 0.6A.
Output:
- 12VDC or 24VDC selectable output.
- 2.5A continuous supply current.
- Filtered and electronically regulated output.
- Short circuit and thermal overload protection.
Battery Backup:
- Built-in charger for sealed lead acid or gel type batteries.
- Automatic switch over to stand-by battery when AC fails.
- Maximum charge current 0.5A.
- Battery leads included.
Supervision:
- AC fail supervision (form “C” contacts).
- Low battery supervision (form “C” contacts).
Visual Indicators:
AC input and DC output LED indicators.
Electrical:
- Operating temperature: – 20ºC to 49ºC ambient.
- BTU/Hr.: 12VDC: 15.35 BTU/Hr. 24VDC: 30.7 BTU/Hr.
- System AC input VA requirement:
Features:
- Power ON/OFF switch.
- Board Dimensions (L x W x H): 7.25” x 4.5” x 1.75” (184.1mm x 114.3mm x 44.5mm)
- Mounting Holes’ Tolerance: +/- 0.04 in. (1mm).
Installation Instructions
OLS75 should be installed in accordance with The National Electrical Code and all applicable Local Regulations.
-
Mount the OLS75 in the desired location/enclosure (mounting hardware included).
-
Slide [Power ON/OFF] switch to OFF position.
-
Set the OLS75 to the desired DC output voltage via SW1 (Voltage Output Selection Table). Keep power-limited wiring separate from non power-limited wiring (115VAC/230VAC 50/60Hz Input, Battery Wires). Minimum 0.25” spacing must be provided.
CAUTION : Do not touch exposed metal parts.
Shut branch circuit power before installing or servicing equipment. There are no user serviceable parts on unit. Refer installation and servicing to qualified service personnel. -
Connect AC power to the terminals marked [L & N], connect ground to the terminal marked [G]. Use 18 AWG or larger for all power connections (Battery, DC output). Use 22 AWG to 18 AWG for power-limited circuits (AC Fail/Low Battery reporting).
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Slide [Power ON/OFF] switch to ON position.
-
Measure output voltage before connecting devices. This helps avoiding potential damage.
-
Slide [Power ON/OFF] switch to OFF position.
-
Connect devices to be powered to the terminals marked [– DC +].
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When the use of stand-by batteries is desired, they must be lead acid or gel type. Connect battery to the terminals marked [– BAT +] (battery leads included). Use two (2) 12VDC batteries connected in series for 24VDC operation.
-
When batteries are not used, a loss of AC will result in the loss of output voltage.
-
Connect appropriate signaling notification devices to AC Fail and Low Battery supervisory relay outputs marked [NC, C, NO].
-
Slide [Power ON/OFF] switch to ON position.
Voltage Output Selection Table
| Output VDC | Switch Position | Max. Load DC |
|---|---|---|
| 12VDC | SW1 – ON | 2.5A |
| 24VDC | SW1 – OFF | 2.5A |
LED Diagnostics
| Red (DC) | Green (AC) | Power Supply Status |
|---|---|---|
| ON | ON | Normal operating condition. |
| ON | OFF | Loss of AC. Stand-by battery is supplying power. |
| OFF | ON | No DC output. Short circuit or thermal overload condition. |
| OFF | OFF | No DC output. Loss of AC. Discharged or no battery present. |
Terminal Identification
| Terminal Legend | Function/Description |
|---|---|
| L, G, N | Connect 115VAC/230VAC to these terminals: L to Hot, N to Neutral, G |
to ground.
– DC +| 12VDC / 24VDC @ 2.5A continuous supply current.
AC FAIL NC, C, NO| Used to notify loss of AC power, e.g. connect to audible
device or alarm panel. Relay normally energized when AC power is present.
Contact rating 1A @ 115VAC / 28VDC.
Low Battery NC, C, NO
| Used to indicate low battery condition, e.g. connect to alarm panel. Relay normally energized when DC power is present. Contact rating 1A @ 115VAC / 28VDC.
Low battery threshold:
12VDC output threshold set @ approximately 10.5VDC. 24VDC output threshold set @ approximately 21VDC.
– BAT +| Stand-by battery connections. Maximum charge rate 0.5A.
140 58th Street, Brooklyn, New York 11220 USA | phone: 718-567-8181 | fax: 718-567-9056 website: www.altronix.com | e-mail: info@altronix.com | Lifetime Warranty
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